“Simms, that’s the one we’re really concerned about because he’s the one that actually pulled the trigger,” said Tyrail’s mother, Pam Hughes.

Pam and her family told CBS 6 News Senior Reporter Wayne Covil they were surprised about the second arrest.

“It kinda shocked me because I didn’t know there was another person. I thought they were only looking for Ryan Simms,” said Hughes from her Petersburg home.

Oliver, a Virginia State University freshman, is charged with conspiracy to distribute marijuana and conspiracy to commit murder.

Police said while this makes a second arrest, they consider Simms armed and dangerous. Additionally, they said their investigation continues to uncover details that led up to the shooting.

“The reason behind all this was a drug sell in which a rip off occurred — and the motivation had all to do with this was the theft of the drugs,” said Chesterfield County Police Captain David Pritchard.